Lance unit and spindle comprising the same

摘要

A spindle which can be used by using the two-channel minimal quantity lubrication. The feeding of the lubricating oil is done by way of a central oil tube which is rotationally fixedly joined to a fixed base piece and which is radially supported on the revolving spindle in the radial direction by way of at least one pivot bearing.

主权项

1. A lance unit for fitting into a spindle of a machine tool, the lance unit comprising:
a de-spun base portion, in which a lubricant connection is provided; and, a liquid pipe which communicates with the lubricant connection and extends away from the de-spun base portion and includes a free end which discharges liquid in low doses the liquid pipe is carried in a rotationally fixed manner by the de-spun base portion and, wherein at least one pipe portion spaced apart from the de-spun base portion cooperates with a pivot bearing, wherein gas may flow axially through the pivot bearing, and wherein the liquid pipe cooperates with a plurality of axially spaced-apart pivot bearings, wherein at least one of the pivot bearings comprises an elastically deformable retaining part, and wherein the retaining part comprises a plurality of resilient lamellae that are distributed in a peripheral direction.